libusb-devel

hello all!
when i try to open a 2nd device within my
program, i get a problem when i claim the
interface. The errorcode says "busy".
i do the following:
--Device A---
1) select the device list.
2) open the device of interest
3) and claim the interface 0.
4) release the device list using 1 for the scnd paramter to decrement
the reference counter.
--Device B---
1) select the device list.
3) open the device of interest
4) and claim the interface 0.
But here i get the error code "busy".
Thanks for your support and best regards
manfred
--
manfred weiss
student of telematics

On Tue, 10 Nov 2009, Manfred Weiss wrote:
> hello all!
>
> when i try to open a 2nd device within my
> program, i get a problem when i claim the
> interface. The errorcode says "busy".
>
> i do the following:
>
> --Device A---
> 1) select the device list.
> 2) open the device of interest
> 3) and claim the interface 0.
> 4) release the device list using 1 for the scnd paramter to decrement
> the reference counter.
>
> --Device B---
> 1) select the device list.
> 3) open the device of interest
> 4) and claim the interface 0.
> But here i get the error code "busy".
Probably interface 0 on device B has already been claimed by a kernel
driver. You will have to detach that other driver before you can claim
the interface.
Alan Stern

Manfred Weiss schrieb:
> hello all!
>
> when i try to open a 2nd device within my
> program, i get a problem when i claim the
> interface. The errorcode says "busy".
>
Sorry guys!
Was my fault. Since we use the new design
nothing is as it was...
manfred
--
manfred weiss
student of telematics